Thomas RECORDING offers a broad range of stimulation microelectrodes for neurophysiological applications. Our quartz glass fiber microelectrodes with conical tips are coated with iridium oxide for minimal electrode-tissue impedance and high charge transfer capacity, well suited for electrical stimulation.  

Product Description

Key Features

• Quartz glass insulated platinum/tungsten fiber electrode

• Fiber outer diameter (D) app. 80 µm...100 µm

• Iridium-Oxide tip coating offers large charge transfer with small electrode tips

• Low electrode/tissue impedance

• Small electrode tip size

• Low cost, high precision

• Available for Thomas RECORDING microdrive systems (e.g. Eckhorn Matrix, Mini Matrix, Micro Matrix)

• Available for other microdrive systems in monopolar and bipolar version

• Thin electrode fibers minimize tissue damage

Acute Stimulation Electrodes

Thomas stimulation microelectrodes for acute in vivo or in vitro stimulation experiments are available in a monopolar or bipolar version for Thomas fiber electrode manipulators (e.g. Mini Matrix, Eckhorn Matrix and Thomas Matrix) and for other electrode manipulators (e.g. manual manipulators or Thomas MEM).

Mono-Polar Stimulation Electrodes

Article number: AN000147 (piece)

Bipolar Stimulation Electrodes

Article number: AN000148 (piece)

Stimulation Electrodes

for Thomas Fiber Electrode Manipulators (Matrix)

Stimulation Electrodes for TREC Fiber Electrode Manipulators

Article number: AN000278 (piece) (Mini matrix)

Article number: AN000279 (piece) (Eckhorn Matrix, Thomas Matrix)

Stimulation Electrodes

for other Manipulators

Chronic Stimulation Electrodes

Thomas RECORDING offers a broad range of implantable mono- and bipolar stimulation microelectrodes based on TREC´s iridium-oxide coated quartz glass insulated platinum tungsten electrode fibers. These electrode fibers have outer diameters of 80...100 µm and impedance values between 50 kOhm and 200 kOhm. Since the electrodes are highly dependent on the respective application, we must manufacture these stimulation electrodes to customer specifications. Please do not hesitate to contact us so that we can offer you stimulation electrodes tailored to your requirements.  

Dual Bipolar Stimulation Microelectrode

Dual bipolar stimulation electrode for simultaneous bilateral bipolar electrical stimulation in small animals (e.g. rats, mice).

This electrode consists of two Thomas tetrode fibers (OD=100µm) with conical tip shapes (tip D). The tip contact impedance is 500-800kOhm (uncoated). Additional Iridium Oxide coating is optional available and lowers the impedance to 100-200kOhm.

A small metal tube is mounted to the rear side of the printed circuit board for fixation of the electrode to the implantation electrode holder rod with TREC water soluable glue (see video for unique Thomas RECORDING implantation technique). 

Article number: AN001328 (piece)

Article number: AN001016

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